Can you set power settings to ALWAYS ON for all computers using GPO?

Is it possible to disable the power management (set it to Always On) on
Windows XP workstations by using GPOs? The only GPO item I can find is to
require a password to resume from hibernation.

I would like to disable the power save feature and set all computers in our
organization to always on. We have a problem with power save kicking in,
turning off the network adapter and thereby disconnecting the users from
their application. This is particularly troublesome with our users that use
wireless tablet PCs.

If you can't disable the power save features with GPOs do you know where the
power save settings are stored in the registry? That way I could have a .reg
file change the registry setting on all computers.

Thanks for the help!
Kent